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Cut two 4x4's to 87" in length.
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Mark the first side with the square, then use that line to transfer the mark to the other sides.
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Mark 1/2" from the end of each 4x4.
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Transfer the line to two of the other sides in a similar manner to step 1.
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Set your circular saw blade to a 45 degree angle as seen in photo 2.
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Bevel 3 of the sides by using the angled blade to cut along the line. The result will look like photo 3.
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The fourth side does not get beveled because it lays flush against the wall.
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You will add 6 steps to the ladder.
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The bottom of each step falls on a multiple of 11".
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You will measure and make lines at the following measurements: 11" and 12.5", 22" and 23.5", 33" and 34.5", 44" and 45.5", 55" and 56.5", and 66" and 67.5".
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Use the circular saw to cut along each line and then make numerous cuts in between each pair of lines as seen in photo 1.
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Use a chisel to clean out these notches as seen in photo 2.
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Using an 8' long 2x6, cut 6 pieces that are 16" long each.
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Mark a radius on two corners on the same long side of the step.
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These rounded corners will keep people from getting gouged or snagged on the step edges.
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Use a jigsaw to cut the rounded corners, as seen in photo 2.
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Use a sander to sand the rounded corners smooth.
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